Home / 856,357,673.80-1,284,536,510.70-448,210,985.80

Finding the Fourth Proportional to 856,357,673.80, 1,284,536,510.70 and 448,210,985.80

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Solution

The fourth proportional to 856,357,673.80, 1,284,536,510.70 and 448,210,985.80 is: 672,316,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,357,673.80 : 1,284,536,510.70 = 448,210,985.80 : x
  2. Step 2: Convert to fraction form
    856,357,673.80/1,284,536,510.70 = 448,210,985.80/x
  3. Step 3: Cross multiply
    856,357,673.80x = 1,284,536,510.70 × 448,210,985.80
  4. Step 4: Simplify right side
    856,357,673.80x = 575,743,375,756,939,264
  5. Step 5: Solve for x
    x = 575,743,375,756,939,264/856,357,673.80
  6. Step 6: Final answer
    x = 672,316,478.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.